Display Notes (GUI)

import pygame
pygame.font.init()


x = 1440  # Length of Macbook Pro 13" screen
y = 805  # height of Macbook Pro 13" screen
screenSize = (x, y)  # Creates a tuple containing screen dimensions
screen = pygame.display.set_mode(screenSize)  # Creates a screen with dimensions (x,y) px
pygame.display.set_caption('Piano Tutor')  # Sets the name of the window
clock = pygame.time.Clock()  # Initialises the Pygame clock

colours = {"white": (255, 255, 255), "black": (0, 0, 0), "dark_green": (0, 150, 0), "light_green": (0, 255, 0),
           "light_dark_blue": (72, 94, 108)}  # A colour dictionary that returns RBG colour values
font = pygame.font.SysFont(None, 48)  # Sets the font to the default font (hence 'None') and gives it a size
small_font = pygame.font.SysFont(None, 20)

########################################################################################################################

song = ['A','B','C','D','E','F','END']
current_count = -1
next_count = 0

done = False

while True:    # When any subprogram finishes, the program lands here
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        screen.fill((255, 255, 255))

        for item in song:  # For each note in the song array...
            current_count = current_count + 1
            next_count = next_count + 1

            if item != "END":  # If it isn't the terminating item...
                current_note = item  # Sets the current note to the item being iterated over in the list. This is done for readability
                text_current_note = font.render(current_note, True, colours["black"])

                next_note = song[next_count]  # Sets the next note to the next position along in the list
                text_next_note = font.render(next_note, True, colours["black"])

                if next_note == song[-1]:  # If the next_note is "END"
                    next_note = " "  # Displays a blank space rather than END
                    text_next_note = font.render(next_note, True, colours["black"])

                if current_note == song[0]:  # If the current note is the beginning
                    previous_note = " "  # Displays a blank space in the previous note space (prevents errors too!)
                    text_previous_note = font.render(previous_note, True, colours["black"])

                else:  # If the current note is not at the beginning
                    previous_note = song[current_count - 1]  # Sets the previous note to the previous position in the list
                    text_previous_note = font.render(previous_note, True, colours["black"])

                #print("| {0} | {1} | {2} |".format(previous_note, current_note, next_note))  # Displays the notes
                #played_note = input(">").upper()  # Gets the input

                screen.blit(text_previous_note, (250, 385))
                screen.blit(text_current_note, (400, 385))
                screen.blit(text_next_note, (550, 385))

    pygame.display.update()